iOS游戏应用源代码——LucasTizma-Hebi-v1.0-1-g3b4e198.zip

// // HBSnake.h // Hebi // // Created by Michael Shannon Potter on 2/18/11. // Copyright 2011 LucasTizma.com. All rights reserved. // #import "HBSnakeSegment.h" typedef enum HBSnakeMovementDirection { HBSnakeMovementDirectionUp = 1, // Default movement direction upon initialization via -init HBSnakeMovementDirectionDown = 2, HBSnakeMovementDirectionLeft = 4, HBSnakeMovementDirectionRight = 5 } HBSnakeMovementDirection; @interface HBSnake : NSObject @property (nonatomic, retain, readonly) NSArray * segments; @property (nonatomic, readonly) HBSnakeSegment * headSegment; @property (nonatomic, assign, readonly) HBSnakeMovementDirection movementDirection; + (id)snakeWithStartingPosition:(CGPoint)startingPosition movementDirection:(HBSnakeMovementDirection)movementDirection numberOfBodySegments:(NSUInteger)numberOfBodySegments; - (id)initWithStartingPosition:(CGPoint)startingPosition movementDirection:(HBSnakeMovementDirection)movementDirection numberOfBodySegments:(NSUInteger)numberOfBodySegments; - (void)moveForward; - (void)addBodySegment; - (void)attemptMovementDirectionChange:(HBSnakeMovementDirection)newMovementDirection; - (BOOL)doesContainSegmentAtPosition:(CGPoint)position; - (BOOL)didCollideWithSelf; @end